Over the years, I've learned not to assume that silence means a radio station is off the air. If you hear silence on a Classical station, there might be a pause between movements of a piece. If you hear silence on a noncommercial community station, the DJ might be having trouble getting a finicky CD player to play. If you hear silence on an NPR station, the announcer might be pausing deliberately to let his or her words sink in--or just might have finished a secular prayer for a better world.
Silence...On the radio, it's usually temporary.
